Ah, sorry for the inconvienience but I rethought my question for this thread

When I add a dataSerie to a chart while it is located inside a tabitem -> tabcontroller -> grid it does not updatebut if I add a dataserie to the same chart while directly located under the grid it updates

What can I do to make it work under a tabitem working on dataseries?

Should add that I work on silverligth 4.0 adding the chart throu XAML and later adding the serie throu code

This is most likely a beginners error since I am new to silverlight and C#

related post: previous thread (new thread as I think this is my fault and a more precise scenario)

hi I am using version 3.0.5 and I am having trouble with re-rendering the chart when I update something. The chart is added with XAML and then updated with data collected from a WCF and since I haven't found any way to force manual re-render and it doesn't do it automatically most of the times (it re-renders sometimes but very seldom).

I think I also found a bug when it comes to series datapoints:

Following the basic generation of a chart as in the samples the following works:
DataPointCollection points = GetPoints();
foreach (DataPoint p in points)
{
serie.DataPoints.Add(p);
}

but this does not work:

DataPointCollection points = GetPoints();
serie.DataPoints = points;

Solution is to make it read-only or make any listeners update to the new collection instead of the old.